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Submarine
📖 About Submarine
A submarine is a special boat that can go underwater! It's like a metal tube with people inside who can explore the deep ocean. Submarines have periscopes to see above the water while staying below!
✨ Fun Facts!
Submarines can dive deeper than 800 feet underwater!
Some submarines are longer than football fields!
Submarines use sonar to 'see' underwater with sound!
People can live in submarines for months at a time!